Bulk HDR to PNM Converter Online — Free HD Quality
Drag and drop your multiple HDR files into this 100% free online HDR to PNM converter (.hdr to .pnm), and click the Convert button to bulk convert them to PNM format in HD quality. Use the quality slider to fine-tune your PNM output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original HDR files are removed from our servers right after. Also see:DDS to JPG converter - no registration.
Drop your HDR files here to convert to PNM, or click to browse
Converts .hdr to PNM (.pnm) in HD quality — bulk, free, no signup
Choose FilesHDR vs PNM — File Format Comparison
See how HDR and PNM compare across file extension, MIME type, compression, and feature support. Related:HDR to RAS converter.
| Feature | HDR | PNM |
|---|---|---|
| File Extension | .hdr | .pnm |
| MIME Type | image/vnd.radiance | image/x-portable-anymap |
| Compression Type | Lossless | Lossless |
| Transparency Support | No | No |
| Animation Support | No | No |
| Metadata Support | Yes | Yes |
What Is HDR Format?
Radiance HDR format for high dynamic range images. See also:Convert HDR to XBM free.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported
What Is PNM Format?
Portable Anymap format, generic Netpbm format.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported